Bolt slot guard for a hand weapon

Abstract

A hand weapon includes a weapon housing, a breechblock accommodated in the housing for reciprocating motion, a bolt affixed to the breechblock and a slot, having opposite longitudinal edges, provided in the weapon housing. The bolt projects through the slot. There is further provided a slot guard arranged for covering the slot. The slot guard comprises a first and a second sealing lip held by the housing along respective longitudinal edges of the slot and projecting outwardly. The sealing lips are, at least along outer edge portions thereof, in a face-to-face engagement with one another and are locally spread apart by the bolt.

We claim: 
     
       1. In a hand weapon including a weapon housing, a breechblock accommodated in the housing for reciprocating motion, a bolt affixed to the breechblock and a slot, having opposite longitudinal edges, provided in the weapon housing; said bolt projecting through said slot and a slot guard arranged for covering said slot; the improvement wherein said slot guard comprises a first and a second sealing lip held by the housing along respective said longitudinal edges of said slot and projecting outwardly; said sealing lips being, at least along outer edge portions thereof, in a face-to-face engagement with one another; said sealing lips being locally spread apart by said bolt; further wherein each said sealing lip has a mounting part at which the respective sealing lip is mounted inside the housing and an elastic lip portion projecting outwardly through said slot. 
     
     
       2. A hand weapon as defined in claim 1, wherein said bolt has a flat oval cross-sectional outline at least in the zone of contact with said sealing lips. 
     
     
       3. A hand weapon as defined in claim 1, wherein said sealing lips are of an elastic material. 
     
     
       4. A hand weapon as defined in claim 3, wherein said sealing lips are of a synthetic material. 
     
     
       5. A hand weapon as defined in claim 4, wherein said synthetic material is polyurethane. 
     
     
       6. A hand weapon as defined in claim 1, wherein said lip portion of each sealing lip has an outer edge having a sealing face oriented perpendicularly to a plane in which said mounting part extends; said lip portion has a longitudinal middle part joined to said mounting part at an obtuse angle. 
     
     
       7. A hand weapon as defined in claim 6, wherein longitudinal ends of each sealing lip flanking the respective said middle part are flattened and have sealing faces extending coplanar with the sealing faces of the respective outer edges. 
     
     
       8. A hand weapon as defined in claim 1, wherein said sealing lips are of identical configuration. 
     
     
       9. In a hand weapon including a weapon housing, a breechblock accommodated in the housing for reciprocating motion, a bolt affixed to the breechblock and a slot, having opposite longitudinal edges, provided in the weapon housing; said bolt projecting through said slot and a slot guard arranged for covering said slot; the improvement wherein said slot guard comprises a first and a second sealing lip held by the housing along respective said longitudinal edges of said slot and projecting outwardly; said sealing lips being, at least along outer edge portions thereof, in a face-to-face engagement with one another; said sealing lips being locally spread apart by said bolt; further wherein each said sealing lip has a mounting part at which the respective sealing lip is held by the housing, a reinforcing insert embedded in said mounting part and an elastic lip portion. 
     
     
       10. A hand weapon as defined in claim 9, wherein said bolt has a flat oval cross-sectional outline at least in the zone of contact with said sealing lips. 
     
     
       11. A hand weapon as defined in claim 9, wherein said sealing lips are of an elastic material. 
     
     
       12. A hand weapon as defined in claim 11, wherein said sealing lips are of a synthetic material. 
     
     
       13. A hand weapon as defined in claim 12, wherein said synthetic material is polyurethane. 
     
     
       14. A hand weapon as defined in claim 9, wherein said lip portion of each sealing lip has an outer edge having a sealing face oriented perpendicularly to a plane in which said mounting part extends; said lip portion has a longitudinal middle part joined to said mounting part at an obtuse angle. 
     
     
       15. A hand weapon as defined in claim 14, wherein longitudinal ends of each sealing lip flanking the respective said middle part are flattened and have sealing faces extending coplanar with the sealing faces of the respective outer edges. 
     
     
       16. A hand weapon as defined in claim 9, wherein said sealing lips are of identical configuration.